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Credit: Jackery，这一点在safew官方版本下载中也有详细论述
One of the most important changes will be whom Ellison names editor-in-chief, he adds, a selection that will set the tone for what follows.，详情可参考safew官方版本下载
For example, a 500km route might be broken down into ~100 such shortcuts. If each A* shortcut calculation explores 100-1000 detailed road segments, the total detailed segments visited by A* might be around 10,000-50,000. Compare this to the 1,000,000+ segments the old A* might have needed for the entire route!